/**
 * Copyright (C) 2011 Google Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.google.inject.internal;

import com.google.inject.Binding;
import com.google.inject.spi.UntargettedBinding;

/**
 * Processes just UntargettedBindings.
 *
 * @author sameb@google.com (Sam Berlin)
 */
class UntargettedBindingProcessor extends AbstractBindingProcessor {

    UntargettedBindingProcessor(Errors errors, ProcessedBindingData bindingData) {
        super(errors, bindingData);
    }

    @Override
    public <T> Boolean visit(Binding<T> binding) {
        return binding.acceptTargetVisitor(new Processor<T, Boolean>((BindingImpl<T>) binding) {
            public Boolean visit(UntargettedBinding<? extends T> untargetted) {
                prepareBinding();

                // Error: Missing implementation.
                // Example: bind(Date.class).annotatedWith(Red.class);
                // We can't assume abstract types aren't injectable. They may have an
                // @ImplementedBy annotation or something.
                if (key.getAnnotationType() != null) {
                    errors.missingImplementation(key);
                    putBinding(invalidBinding(injector, key, source));
                    return true;
                }

                // This cast is safe after the preceeding check.
                try {
                    BindingImpl<T> binding = injector.createUninitializedBinding(key, scoping, source, errors, false);
                    scheduleInitialization(binding);
                    putBinding(binding);
                } catch (ErrorsException e) {
                    errors.merge(e.getErrors());
                    putBinding(invalidBinding(injector, key, source));
                }

                return true;
            }

            @Override
            protected Boolean visitOther(Binding<? extends T> binding) {
                return false;
            }
        });
    }
}
